Elevator.



J. HEIMER.

BLBVATOR.

.A rPLIoATIQB FILED JULY 9, 1906.

1,046,36. Patented D60. 3, 1912.

.2 SHEETS-SHEBT 1.

WITJrEssEs.-

J. HBIMER.

ELBvAToR.

APPLICATION FILED JULY 9, 190B.

Patented Dec.3, 1912.

2 SHEETS-SBEET 2.

` To all whom it 'may :concern:

JOEN HEIIMER, OF MINNEAPOLIS, MINNESOTA, ASSIGNOR T MINNESOTA MANUFAC- TUBERS ASSOCIATION, A GOREORATION OF MINNESOTA.

ELEVATOB.

Specification of Letters Patent.

Patented Dec. 3, 1912.

. Application led July 9, 1.906. Serial No. 325,288.

Be it known that LJoHN Harman, a citiaen of the United States, residing'at -Minneapolis, in the county of Hennepin and State of Minnesota, have invented certain new and useful Improvements in Elevators;

and l do declare the following to be a full,

clear, and exact description of the invention, such as will enable others skilled in the artto which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

My invention relates to elevators of the class used in ware-houses and similar places Figure 1 is a top view of m improved elevator seen in the elevator shay in a door, and adjacent gravity conveyors upon the licor for moving elevator. Fig. 2 is a vertical section on the line a. a in Fig. 1, or it may b e called a side elevation of my elevator with one side frame removed, and shown as applied to two floors of a building, the floors being in section. Fig. 3 is a fragmentary bottom view of one of the platforms or cars Vof thev elevator. Fig. 4 is an end view of one of the two frame bars 6 in Figs. 1 and 2, with adjacent part-s. Fig. 5 is a sectional '.view on the line b b in Fig. 4:, of the tenon 23, with tension screw therein. Fig. 6 is a sectional side view of my invention, taken on the line a-a of Fig.

' 1, showing a gravity carrier applied to upper and lower floors of a building.

Referring to the drawing by reference numerals, 1 designates the first iior and 2 i is one of the upper floors of a building, while 3 is the bottom of a pit sufficiently lower than the irst floor to allow the elevator to .descend and load from the first Hoor.

ln the hatch-way or shaft 4 is secured a suitable frame consisting of the base timbers 5, horizontal timbers 6, 7, 8 and four boxesV to and from lthe 'fixed on the car and upright posts 9 secured to said other timbers and to the joistsf'rl() of the building. In

the yupper end of the frame are journaled in bearings 11 two horizontal studs or stumpshafts 12, and in bearings 11 are fixed two .studs 13, while in the bars 6 are fixed four studs 14. Upon the studs 13 and 14 are journaled` grooved sheaves 1,5, over which are stretched two endless chains 16, which are further stretched and also operated by two sprocket wheels 1.7, fixed on the stumpshafts 12 ,and the latter are rota-ted by gear A wheels 18 fixed on their outer ends, and'two smaller gears 18a meshing therewith and fixed on a shaft 18", driven by a sprocketwheel 18c fixed von it, and a belt-chain (not shown) or any other suitable meansof transmltting power to said shaft. rlhe slack in the chains caused bywear is taken up by the tension screws 19,- threaded A in lugs 20 on the posts 9 and having their lowerfends provided with annular grooves 2l engaging a in 22 in the projecting tenons 23 of the rame bars 6 whichare adjustable vertically in slotted mortises 24 in 'the posts.

All four of the tenons 23 are shown in their positions in Fig. 1, and the detail construction of each is clear in Figs. l, 4 and 5.

rlhe elevator cars or platforms 25 are pivotally suspended by their bracing hangers 26 from horizontal bars 27, which have their ends securedto the chains. Only three cars are shown in the present drawing, but their number will in actual use be decreased for increased according as the height of the building and other 'circumstances may require. The form of the lcar may also be varied from the one shown, which is mostly a suspended platform with rollers'35 for the boxes of goods vto move on.

rlhe lower end of each 4car is guided by ribs or strips 29 are fixed one on each 'of the posts 9, anddouble-flaring guides 30 and 31 the strips at opposite sides of the elevator shaft, the guides 31 doing service during the straddling alternately ascent and the guide 30 during the descent of the car. To assist the guides on the cars into proper engagement with the on the posts l provide on the frame-work. the curved guides 32, 33, of which 32 touches the guide 31 as in the left up r part of deiscenm and Fig. 2, when the car starts to strips 29 m and having a folcing section 38, pivoted at 39 and provided with a rocker arm 40, from which extends .downwardly into the next story a rope orchain 41 with a loop 42, adapted to be placed on a peg 43 and thus hold the section 38 idle in an uprigh. or slightly inclined position, as shown to the left in the drawing, and when the loo is removed from the peg the section 38 will fall into a straight line with the main body of the gravity conveyer and thus be ready for service.

It will be seen that both the conveyers and the bottom of the car incline in the same direction, so that a box placed upon the rollers of the conveyer 37l on any of the floors will be moved by its own weight against the stop 44, and as soon as it is picked up by the car it moves of itsown weight to the middle of the latform, where it stops against two vertical y slidable pegs 45, which are pivotally secured to a lever` 46 (see Fig. 3) pivoted in lugs 47 below the platform and having a tail 48 which is held by frictional contact of a. spring-arm 49 fixed under the platform, until it touches the bracket 50 on the frame, which tilts the lever and draws the pegs downward, so that the moment the car' commences to descend the box moves from its central position 51 to the position 52, stopping against the fixed catches 53 where it remains'until the platform descends from under it, leaving it to rest on a conveyer section 38, which on the desired floor is lowered into position, resting upon the support 54; and when the box is thus deposited it will of its own `gravity move away from the elevator as far as the conveyer 37 is arranged to carry it. The pegs or catches 45 are restored upward to normal position by the contact of the tail 48 against thevbracket 50a as soon as the car commences to ascend.

From the above description, it will be seen that l provide an economical elevator both as to construction and operation; everything being lsimple to make, and as to operation the elevator will load any box or similar article moved near it into proper position, and by means of the cords indicated by 41 the operator may stand on `one :door and send goods and deposit them on any of the other ioors. The elevator may also be used without gravity conveyers on the floors of the building. v

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is l,-

1. In an elevator of the class described, a car having an inclined Hoor or platform with rollers for the goods-conveying box to rest and move on, iixed guards 53 near the lowest edge of the platform and vertically movableA guards 45 retaining the box on the middle of the platform until it commences to descend, and means operated automatically by tlie motion of the elevator to withdraw the movable guards when the platform or car commences to descend, and restoring the guards again to normal position when the car commences to ascend, and automatic means for holding the guards in active and inactive position.

2. In an elevator of the class described, the combination with an upright frame having four corner posts and horizontal bars at top and bottom and two intermediate horizontal bars having vertical play, means for adjusting said bars vertically, a air of chain pulleys revolving on studs xed in each o said adjustable bars, chain-supporting pulleys mounted in the upper end of the frame, one vertically above each of the four lower pulleys, a pair of endless chains runninor parallel over said upper and lower pulleys, horizontal bars having their ends supported in the chains, elevator cars pivotally suspended from said bars, means for guiding the lower part of each car, two of said chain pulleys being sprocket wheels by l which to engage and move the chains, a shaft fixed in said sprocket wheels and journaled in the frame, and means for transmitting power to said shaft, said guiding means for the car consisting of guiding strips 29 fixed one on each post of the frame beyond the pathway of the chains, up and downwardly daring guides 30, 31 upon two opposite sides of each car, the guides 30 being adapted to straddle the strips or ribs on the post during descension and the guides 31 during the ascension of the car, and the guides 32 and 33 for iding the car into sliding engagement with the ribs on the posts.

3. An elevator having a frame with twothe car to move on, and auxiliary guides on the frame work for guiding the cars into each pathway, substantially as and for the purpose set forth.

4. ln an elevating apparatus, the combisaid carrier, and means for automatically nation with an upright frame, of an elevatremoving said stop from the path of the ing belt operating vertically in said frame, article when said carrier co-incides With a carrier hung from said belt provided With said receiving conveyer.

5 an inclined floor and stop, and adapted to In testimony whereof I affix my signature, 15

pick up packages on one side and deliver in presence of two Witnesses. them on the other side of said belt, guides JOHN 'HEIMER between said frame and carrier, a gravity Witnesses: t receiving and delivery conveyer on the sides A. M. CARLSEN,

10 of said belt and intercepting the path of HAROLD Huma 

